Hurumanu - Decomposing and Recycling

Aim: To learn about the rate that different materials decompose. 

Hypothesis: I think that...... The Banana would rot first

Materials:

1.   Banana
2.   Bread
3.   Test tubes
4.   Cardboard
5.  Styrofoam 
6.   
7.     

Steps:

1.   Get your test tubes and put them in the holder
2.   Get your ingredients ( Banana, Cardboard, Styrofoam, Bread )
3. Put your banana in the tube
4.  Put the cardboard into the tube 
5.   Put the Styrofoam into the tube
6.  Put the bread in the tube  

Findings:

•   The Banana did rot first over the course of the 2 weeks
•   The cardboard and the Styrofoam did absolutely nothing
•   The bread was the second most disgusting
• 
  

3 weeks	Colour	Change	Observations
Banana	Green, brown , black and a little bit yellow	It has got alot of mold on it and it looks very fuzzy	Its brown and furry all over with green and black bits
Cardboard	Its still brown with no other colors	Its almost the exact same as last time nothing has changed	Its still the same no massive changes
Styrofoam cup	White still	Nothing has changed at all	Its still the same
Bread	Its green and brown with a gross looking orange water substance	Its gross and furry green and has deflated quite a lot

Conclusion: In conclusion the Banana did rot first  and the Styrofoam had no effect what so ever, the cardboard was almost the exact same as well, I think the bread went just as bad as the banana but like I said the banana roted first.

Hurumanu

AIM: TO LOOK AT CLIMATE CHANGE AND THE GREENHOUSE EFFECT.

THE GREENHOUSE GASES

The Greenhouse Effect experiment

Materials

1. Bottles 
2. Thermometer
3. Baking soda
4. Heat lamp

Procedure

1.  Plug in the heat lamps
2. Put the heat lamps toward the bottles
3. Add the water and baking soda mixture to one of the bottles 
4. Add just water to the second bottle
5. Put the bung and thermionic in the top
6. Start recording the time for every 5 minutes

    Findings:The Greenhouse Effect Data 

Minutes	Bottle 1: Water	Bottle 2: CO2 Gas
0	18	18
5	24	36
10	25	30
15	25	30
20	25
25	24
30	24

Conclusion: In conclusion this experiment was very fun and very time consuming project but we learned a lot more and it was worth it.

  

Hurumanu - Wind power

Extreme weather

Measuring weather.

Definitions:

1.  Anemometer:
2. Beaufort wind scale:

MATERIAL 

1. 2 chop sticks   
2. Cello tape  
3. 4 Glass Cups  
4.   Pencil
5. Pin
6. 
   

STEPS

1.  Cello tape the cups to each end of the sticks 
2.   Cello tape the sticks together to make a cross
3.   Pin the cross to the rubber of the pencil
4.   
5.   
6. 
   

Group Investigation.

Groups size: 5 
Roles:

• Timekeeper
• Counter
• Recorder
• Anemometer Manager
• Wind Manager

1. Mount the anemometer in a place that has full access to the wind from all directions.
2. When the time keeper says "Go", the counter in each group will count how many times the marked cup passes them in one minute and write it down.
3. Repeat the above step four (4) times and record the number of spins on the chart.

Instructions:

• Go to the measuring place and set up your wind gauge.
• Make sure everyone in your group is ready to start their roles.
• Record how many times it spins and record it in the table below.
• Count the number of spins in 15 seconds.
• Record it on your chart.

FINDINGS

	Place name on school grounds	Number of Spins in 15 seconds
1.	Field	20
2.	Old j block site	15
3.	Grass hill in quad	10
4.	Tennis Court Gate	3

• USING A4 PAPER DRAW YOUR RESULTS ON A GRAPH.
• TAKE A PICTURE OF THE GRAPH AND UPLOAD IT TO YOUR BLOG

WHICH IS THE WINDEST AREA AND WHY?

WHICH IS THE CALMEST AREA AND WHY?

WHERE IS THE BEST PLACE ON LAND TO BUILD A WINDMILL?

Beaufort Force	Wind Speed (KPH)	Spins	Indicators	Terms Used in NWS Forecasts
0	0-2	0	Calm; smoke rises vertically.	Calm
1	2-5	10	Shown by direction of wind smoke drift, but not by wind vanes.	Light
2	6-12	40	Wind felt on face, leaves rustle; ordinary vanes moved by wind.	Light
3	13-20	80	Leaves and small twigs in constant motion; wind extends light flag.	Gentle
4	21-29	130	Raises dust and loose paper; small branches are moved.	Moderate
5	30-39	190	Small trees in leaf begin to sway; crested wavelets form on inland waters.	Fresh
6	40-50	250	Large branches in motion; whistling heard in telephone wires; umbrellas used with difficulty.	Strong
7	51-61	320	Whole trees in motion; inconvenience felt walking against the wind.	Strong
8	62-74	390	Breaks twigs off trees; generally impedes progress.	Gale
9	75-87	470	Slight structural damage.	Gale
10	88-101	550	Seldom experienced inland; trees uprooted; considerable structural damage occurs.	Whole gale
11	102-116	640	Very rarely experienced inland; accompanied by widespread damage.	Whole gale
12	117 or more	730+	Very rarely experienced; accompanied by widespread damage.	Hurricane

Spins per minute	Wind speed ( kph)	Beaufort Scale
Field	80	13-20	3
Old J Block site	60	12-14	2
Grass hill	40	6-12	2
Tennis Court Gate	12	2-5	1

CONCLUSION:  

The wind speed on the field was 20 spins every 15 seconds and was 80 kph and the beaufort scale was 3. The wind on the old j block site was 15 spins every 15 seconds and was 60 kph and the beaufort scale was 2. The wind on the grass hill was 10 spins every 15 seconds and 40 kph and the beaufort scale was 2. The wind on the tennis court was 3 spins per 15 seconds 12 kph and the beaufort scale was 1.

Definitions

In hurumanu this week we have been looking at different types of weather and how much damage they cause. We have watched a video today compilation to see what type of damge this weather does. We have wrote a definition for each one of these.  

1. Anemometer - an instrument for measuring the speed of the wind, or of any current of gas.
2. Beaufort -The Beaufort scale /ˈboʊfərt/ is an empirical measure that relates wind speed to observed conditions at sea or on land. Its full name is the Beaufort wind force scale.
3. Typhoon - a tropical storm in the region of the Indian or western Pacific oceans.
4. Monsoon - a seasonal prevailing wind in the region of South and SE Asia, blowing from the south-west between May and September and bringing rain (the wet monsoon ), or from the north-east between October and April (the dry monsoon ).
5. What is it when the weather is really nice and turns to hail?  Climate change